What is the medical term meaning belch?

Answer 1

Belching is called eructation . Borborygmus is your tummy rumbling.
The medical term for burping and belching is "eructation". It means a voluntary or involuntary release of air from the stomach or esophagus through the mouth.

Answer 2

A belch is a loud expulsion of gas from the stomach through the mouth.

Answer 3

Belching is the act of producing a belch - a loud expulsion of gas from the stomach through the mouth.